Auxillary fan, overheating

[kengodfrey]

Just another comment on overheating. I had a problem with SSR overheating in stop and go traffic. I never checked the OEM fan, just assumed I had the same problem as everyone else. I bought the auxillary fan from Mike, and installed it. It works perfect! After installation, I followed Mikes instructions to check the OEM fan, and discovered it was not working. I dont know how long it had not been working, so I took it in to Chevy dealer today, and they determined it needed to be replaced. Maybe that was why I overheated before, but either way, glad I have the auxillary fan. Even without the OEM fan, it never got over 210 degrees. The chevy mechanic was impressed with the aux fan.

Thanks Mike!

[Mike in AZ]

I had assumed that the Aux fan had enough oomph to get you to a repair shop in the event of a main fan failure..... You just gave me proof that it does.

Glad to see you got your main fan fixed.

Regards

[smokey]

Kudos to Mike in AZ for the excellent instruction manual (includes pics) with his Aux Fan kit. We had ours installed today and our mechanic was very impressed as to how easy Mike made everything!
Thanks Mike!!!
Smokey (Jim & Glenda)

[Daij]

i also get over heating problems in my truck. i ordered a aluminum radiator from lingenfelter and i hope i can finally drive the car outside in the heat

[Fredrick]

Bought the truck a few months ago and it heats up (sometimes) in stop and go traffic! Checked the fan operation w/usual checking sequence and it works OK. BUT, I bought a Hayden replacement fan anyway but now I find that the new fan can't be installed either as an OEM replacement, or as an auxiliary fan. No place to put it in front of the radiator and it only has TWO wires! What in the world should be done about this? Help!

[MnMsToy]

Originally Posted by Fredrick

Bought the truck a few months ago and it heats up (sometimes) in stop and go traffic! Checked the fan operation w/usual checking sequence and it works OK. BUT, I bought a Hayden replacement fan anyway but now I find that the new fan can't be installed either as an OEM replacement, or as an auxiliary fan. No place to put it in front of the radiator and it only has TWO wires! What in the world should be done about this? Help!

Install Mike in Az main cooling fan. http://shop.simple-engineering.com/p...4&categoryId=3

[Mike in AZ]

Originally Posted by Fredrick

Bought the truck a few months ago and it heats up (sometimes) in stop and go traffic! Checked the fan operation w/usual checking sequence and it works OK. BUT, I bought a Hayden replacement fan anyway but now I find that the new fan can't be installed either as an OEM replacement, or as an auxiliary fan. No place to put it in front of the radiator and it only has TWO wires! What in the world should be done about this? Help!

The OEM cooling system operation is pretty simple. The main fan is turned on by the computer to either low or high speed by one of the two following things:

1) Engine temperature: Increasing temps - off to low at 226, low to high at 235. Decreasing temps - high to low at 226, low to off at 219.

2) Air conditioning: Low speed fan any time A/C is on. High speed fan when A/C system pressures indicate more airflow is needed across the condenser. A/C logic circuit disabled above 35mph (enough ram air that you don't need a fan).

As you can see, if you have the A/C off and are in stop-and-go traffic, you will get temperature swings to at least 226 and sometimes to 235 (if you've been creating extra engine heat).

The simplest solution is to turn on the A/C when you are in stop-and-go traffic. This will force the main fan to run on low speed for the A/C and (as a by-product) pull enough air across the radiator to keep the engine cool.

There are other ways to solve the problem. Yes, an auxiliary fan is one of the solutions. You just need to have a control mechanism that is independent of the computer control. There is a way to install a fan in front of the radiator without drilling holes in the truck or installing it to the condenser. There are about 400 of them in service across the country.

You can call me this weekend to talk....... I'll send you my phone number on a PM...

Regards,

Mike

[Mike in AZ]

Looks like you are not able to receive Private Messages yet........ My cell phone number is 480-225-2123. Call me when you get a couple minutes and we can talk......

Regards,

Mike

[BlueStreak]

Originally Posted by Fredrick

Bought the truck a few months ago and it heats up (sometimes) in stop and go traffic! Checked the fan operation w/usual checking sequence and it works OK. BUT, I bought a Hayden replacement fan anyway but now I find that the new fan can't be installed either as an OEM replacement, or as an auxiliary fan. No place to put it in front of the radiator and it only has TWO wires! What in the world should be done about this? Help!

Welcome, from one of the SoCal Nuts, to the right spot for solutions to your problems and questions. Sorry to hear you bought the wrong piece of equipment but the offer above is from the right person to solve your problem. Sounds like he might be able to solve your overheating with a bit of his parts and knowledge and I would take him up on that phone call. Good luck and hope we hear from you many more times under happier circumstances. Let us know a bit more about yourself and your SSR.

[Fredrick]

Apologies to everyone about not being on-line for such a long time. My computer crashed and I'm just 'picking up the pieces.' Patience, please. Thanks for the advice and I'll be following up soon.